Jeremy Guthrie, LHP, Kansas City Royals

Years with Orioles: 2007-2011 Orioles stats: 47-65, 4.12 ERA in 161 games Current stats: 8-7, 4.25 ERA, 124 H, 43 BB, 58 SO in 120 2/3 innings Skinny: Guthrie, who twice lost 17 games for the Orioles, was traded to Colorado before the 2012 season for right-hander Jason Hammel, who was the Orioles' opening day starter this season. His ERA of 3.16 last season and 4.25 this season are his lowest marks since a 3.83 ERA in 2010.

Years with Orioles: 2007-2011 Orioles stats: 47-65, 4.12 ERA in 161 games Current stats: 8-7, 4.25 ERA, 124 H, 43 BB, 58 SO in 120 2/3 innings Skinny: Guthrie, who twice lost 17 games for the Orioles, was traded to Colorado before the 2012 season for right-hander Jason Hammel, who was the Orioles' opening day starter this season. His ERA of 3.16 last season and 4.25 this season are his lowest marks since a 3.83 ERA in 2010. (Jason Miller / Getty Images)

Years with Orioles: 2007-2011 Orioles stats: 47-65, 4.12 ERA in 161 games Current stats: 8-7, 4.25 ERA, 124 H, 43 BB, 58 SO in 120 2/3 innings Skinny: Guthrie, who twice lost 17 games for the Orioles, was traded to Colorado before the 2012 season for right-hander Jason Hammel, who was the Orioles' opening day starter this season. His ERA of 3.16 last season and 4.25 this season are his lowest marks since a 3.83 ERA in 2010.Jason Miller / Getty Images